物权的种类和内容由法律统一规定，不允许当事人自由创设。 ()
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A．What they will do that afternoon.B．Working on an assignment together.C．How they will
A. What they will do that afternoon.
B. Working on an assignment together.
C. How they will spend the weekend.
D. Returning books to the library.
在产品责任中，产品制造者和销售者承担连带责任。 ()
A. 正确
B. 错误
A．The man brought the TV at a very low price.B．The man works in a store selling TVs.C．
A. The man brought the TV at a very low price.
B. The man works in a store selling TVs.
C. The man's words played a big role in the woman's purchase.
D. The man is not willing to buy the TV.
图所示结构中()。
A. MCD=0，CD杆只受轴力
B. MCD≠0，外侧受拉
C. MCD≠0，内侧受拉
D. MCD=0，NCD=0
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